/*
 *  Copyright 2006 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.mybatis.generator.api.dom.java;

/**
 * @author Jeff Butler
 * 
 */
public class PrimitiveTypeWrapper extends FullyQualifiedJavaType
{
    private static PrimitiveTypeWrapper booleanInstance;
    
    private static PrimitiveTypeWrapper byteInstance;
    
    private static PrimitiveTypeWrapper characterInstance;
    
    private static PrimitiveTypeWrapper doubleInstance;
    
    private static PrimitiveTypeWrapper floatInstance;
    
    private static PrimitiveTypeWrapper integerInstance;
    
    private static PrimitiveTypeWrapper longInstance;
    
    private static PrimitiveTypeWrapper shortInstance;
    
    private String toPrimitiveMethod;
    
    /**
     * Use the static getXXXInstance methods to gain access to one of the type wrappers.
     * 
     * @param fullyQualifiedName fully qualified name of the wrapper type
     * @param toPrimitiveMethod the method that returns the wrapped primitive
     */
    private PrimitiveTypeWrapper(String fullyQualifiedName, String toPrimitiveMethod)
    {
        super(fullyQualifiedName);
        this.toPrimitiveMethod = toPrimitiveMethod;
    }
    
    public String getToPrimitiveMethod()
    {
        return toPrimitiveMethod;
    }
    
    public static PrimitiveTypeWrapper getBooleanInstance()
    {
        if (booleanInstance == null)
        {
            booleanInstance = new PrimitiveTypeWrapper("java.lang.Boolean", //$NON-NLS-1$
                "booleanValue()"); //$NON-NLS-1$
        }
        return booleanInstance;
    }
    
    public static PrimitiveTypeWrapper getByteInstance()
    {
        if (byteInstance == null)
        {
            byteInstance = new PrimitiveTypeWrapper("java.lang.Byte", //$NON-NLS-1$
                "byteValue()"); //$NON-NLS-1$
        }
        return byteInstance;
    }
    
    public static PrimitiveTypeWrapper getCharacterInstance()
    {
        if (characterInstance == null)
        {
            characterInstance = new PrimitiveTypeWrapper("java.lang.Character", //$NON-NLS-1$
                "charValue()"); //$NON-NLS-1$
        }
        return characterInstance;
    }
    
    public static PrimitiveTypeWrapper getDoubleInstance()
    {
        if (doubleInstance == null)
        {
            doubleInstance = new PrimitiveTypeWrapper("java.lang.Double", //$NON-NLS-1$
                "doubleValue()"); //$NON-NLS-1$
        }
        return doubleInstance;
    }
    
    public static PrimitiveTypeWrapper getFloatInstance()
    {
        if (floatInstance == null)
        {
            floatInstance = new PrimitiveTypeWrapper("java.lang.Float", //$NON-NLS-1$
                "floatValue()"); //$NON-NLS-1$
        }
        return floatInstance;
    }
    
    public static PrimitiveTypeWrapper getIntegerInstance()
    {
        if (integerInstance == null)
        {
            integerInstance = new PrimitiveTypeWrapper("java.lang.Integer", //$NON-NLS-1$
                "intValue()"); //$NON-NLS-1$
        }
        return integerInstance;
    }
    
    public static PrimitiveTypeWrapper getLongInstance()
    {
        if (longInstance == null)
        {
            longInstance = new PrimitiveTypeWrapper("java.lang.Long", //$NON-NLS-1$
                "longValue()"); //$NON-NLS-1$
        }
        return longInstance;
    }
    
    public static PrimitiveTypeWrapper getShortInstance()
    {
        if (shortInstance == null)
        {
            shortInstance = new PrimitiveTypeWrapper("java.lang.Short", //$NON-NLS-1$
                "shortValue()"); //$NON-NLS-1$
        }
        return shortInstance;
    }
}
